OptionalapiOptionalauthAuthentication mode. If not provided, defaults to OPENID_CONNECT - the usual client mode
Optionalcredentialsif authMode is IAM, override default credential values with these.
GraphQL URL i.e. AppSync URL in most cases.
AWS Region to connect to.
OptionaltokenA provider which resolves to the ID token for authentication.
If authMode is API_KEY, this is the API key to use for authentication.